diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 4a5facfb..27009a3d 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -1,6 +1,9 @@
+import java.util.Properties
+
 plugins {
-    id("com.android.application")
-    id("org.jetbrains.kotlin.android")
+    hmh("application")
+    hmh("compose")
+    hmh("test")
 }
 
 android {
@@ -54,6 +57,7 @@ dependencies {
     implementation(libs.core.ktx)
     implementation(libs.lifecycle)
     implementation(libs.activity.compose)
+    implementation(libs.retrofit)
     implementation(platform(libs.compose.bom))
 
     //appcompat implementation
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 0527c564..d2f90472 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-
     <style name="Theme.HMHAndroid" parent="Theme.AppCompat.Light.NoActionBar" />
 </resources>
diff --git a/build-logic/convention/build.gradle.kts b/build-logic/convention/build.gradle.kts
new file mode 100644
index 00000000..88bc17a2
--- /dev/null
+++ b/build-logic/convention/build.gradle.kts
@@ -0,0 +1,54 @@
+plugins {
+    `kotlin-dsl`
+}
+
+group = "com.hmh.hamyeonham.buildlogic"
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
+}
+
+
+dependencies {
+    compileOnly(libs.agp)
+    compileOnly(libs.kotlin.gradleplugin)
+}
+
+gradlePlugin {
+    plugins {
+        create("android-application") {
+            id = "com.hmh.hamyeonham.application"
+            implementationClass = "com.hmh.hamyeonham.plugin.AndroidApplicationPlugin"
+        }
+        create("android-feature") {
+            id = "com.hmh.hamyeonham.feature"
+            implementationClass = "com.hmh.hamyeonham.plugin.AndroidFeaturePlugin"
+        }
+        create("android-kotlin") {
+            id = "com.hmh.hamyeonham.kotlin"
+            implementationClass = "com.hmh.hamyeonham.plugin.AndroidKotlinPlugin"
+        }
+        create("android-hilt") {
+            id = "com.hmh.hamyeonham.hilt"
+            implementationClass = "com.hmh.hamyeonham.plugin.AndroidHiltPlugin"
+        }
+        create("kotlin-serialization") {
+            id = "com.hmh.hamyeonham.serialization"
+            implementationClass = "com.hmh.hamyeonham.plugin.KotlinSerializationPlugin"
+        }
+        create("junit5") {
+            id = "com.hmh.hamyeonham.junit5"
+            implementationClass = "com.hmh.hamyeonham.plugin.JUnit5Plugin"
+        }
+        create("android-test") {
+            id = "com.hmh.hamyeonham.test"
+            implementationClass = "com.hmh.hamyeonham.plugin.AndroidTestPlugin"
+        }
+        create("compose") {
+            id = "com.hmh.hamyeonham.compose"
+            implementationClass = "com.hmh.hamyeonham.plugin.ComposePlugin"
+        }
+    }
+}
+
diff --git a/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidApplicationPlugin.kt b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidApplicationPlugin.kt
new file mode 100644
index 00000000..d0dfe3cf
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidApplicationPlugin.kt
@@ -0,0 +1,11 @@
+package com.hmh.hamyeonham.plugin
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+
+class AndroidApplicationPlugin: Plugin<Project> {
+    override fun apply(target: Project) = with(target) {
+        plugins.apply("com.android.application")
+        configureAndroidCommonPlugin()
+    }
+}
diff --git a/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidHiltPlugin.kt b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidHiltPlugin.kt
new file mode 100644
index 00000000..bb6629a9
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidHiltPlugin.kt
@@ -0,0 +1,24 @@
+package com.hmh.hamyeonham.plugin
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getByType
+
+class AndroidHiltPlugin : Plugin<Project> {
+    override fun apply(target: Project) = with(target) {
+        with(plugins) {
+            apply("com.google.devtools.ksp")
+            apply("com.google.dagger.hilt.android")
+        }
+
+        val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+        dependencies {
+            "implementation"(libs.findLibrary("hilt").get())
+            "ksp"(libs.findLibrary("hilt.compiler").get())
+            "testImplementation"(libs.findLibrary("hilt.testing").get())
+            "kspTest"(libs.findLibrary("hilt.testing.compiler").get())
+        }
+    }
+}
diff --git a/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidKotlinPlugin.kt b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidKotlinPlugin.kt
new file mode 100644
index 00000000..b62ac038
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidKotlinPlugin.kt
@@ -0,0 +1,47 @@
+package com.hmh.hamyeonham.plugin
+
+import com.android.build.gradle.BaseExtension
+import org.gradle.api.JavaVersion
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.api.plugins.ExtensionAware
+import org.gradle.kotlin.dsl.configure
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getByType
+import org.jetbrains.kotlin.gradle.dsl.KotlinJvmOptions
+
+class AndroidKotlinPlugin : Plugin<Project> {
+    override fun apply(target: Project) = with(target) {
+        with(plugins) {
+            apply("kotlin-android")
+        }
+
+        val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+        extensions.getByType<BaseExtension>().apply {
+            setCompileSdkVersion(libs.findVersion("compileSdk").get().requiredVersion.toInt())
+
+            defaultConfig {
+                minSdk = libs.findVersion("minSdk").get().requiredVersion.toInt()
+                targetSdk = libs.findVersion("targetSdk").get().requiredVersion.toInt()
+            }
+
+            compileOptions {
+                isCoreLibraryDesugaringEnabled = true
+                sourceCompatibility = JavaVersion.VERSION_17
+                targetCompatibility = JavaVersion.VERSION_17
+            }
+
+            (this as ExtensionAware).configure<KotlinJvmOptions> {
+                jvmTarget = "17"
+            }
+        }
+
+        dependencies {
+            "coreLibraryDesugaring"(libs.findLibrary("desugarLibs").get())
+            "implementation"(libs.findLibrary("kotlin").get())
+            "implementation"(libs.findLibrary("kotlin.coroutines").get())
+            "implementation"(libs.findLibrary("kotlin.datetime").get())
+        }
+    }
+}
diff --git a/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidTestPlugin.kt b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidTestPlugin.kt
new file mode 100644
index 00000000..8c44b4ef
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/AndroidTestPlugin.kt
@@ -0,0 +1,40 @@
+package com.hmh.hamyeonham.plugin
+
+import com.android.build.gradle.BaseExtension
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.kotlin.dsl.apply
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getByType
+
+class AndroidTestPlugin: Plugin<Project> {
+    override fun apply(target: Project): Unit = with(target) {
+        apply<JUnit5Plugin>()
+        val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+
+        extensions.getByType<BaseExtension>().apply {
+            defaultConfig {
+                testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+                testInstrumentationRunnerArguments["runnerBuilder"] = "de.mannodermaus.junit5.AndroidJUnit5Builder"
+            }
+
+            testOptions {
+                unitTests {
+                    isIncludeAndroidResources = true
+                }
+            }
+
+            packagingOptions {
+                resources.excludes.add("META-INF/LICENSE*")
+            }
+        }
+
+        dependencies {
+            "testImplementation"(libs.findLibrary("junit").get())
+            "debugImplementation"(libs.findLibrary("truth").get())
+            "testImplementation"(libs.findLibrary("robolectric").get())
+            "androidTestImplementation"(libs.findBundle("androidx.android.test").get())
+        }
+    }
+}
diff --git a/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/CommonConfigs.kt b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/CommonConfigs.kt
new file mode 100644
index 00000000..e353c0e0
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/CommonConfigs.kt
@@ -0,0 +1,39 @@
+package com.hmh.hamyeonham.plugin
+
+import com.android.build.gradle.BaseExtension
+import org.gradle.api.Project
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.kotlin.dsl.apply
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getByType
+import java.util.Properties
+
+internal fun Project.configureAndroidCommonPlugin() {
+    val properties = Properties().apply {
+        load(rootProject.file("local.properties").inputStream())
+    }
+
+    apply<AndroidKotlinPlugin>()
+    apply<KotlinSerializationPlugin>()
+    with(plugins) {
+        apply("kotlin-parcelize")
+    }
+    apply<AndroidHiltPlugin>()
+
+    extensions.getByType<BaseExtension>().apply {
+        defaultConfig {}
+        buildFeatures.apply {
+            viewBinding = true
+            buildConfig = true
+        }
+    }
+
+    val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+    dependencies {
+        "implementation"(libs.findLibrary("core.ktx").get())
+        "implementation"(libs.findLibrary("appcompat").get())
+        "implementation"(libs.findBundle("lifecycle").get())
+        "implementation"(libs.findLibrary("material").get())
+        "implementation"(libs.findLibrary("timber").get())
+    }
+}
diff --git a/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/ComposePlugin.kt b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/ComposePlugin.kt
new file mode 100644
index 00000000..6115b414
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/ComposePlugin.kt
@@ -0,0 +1,27 @@
+package com.hmh.hamyeonham.plugin
+
+import com.android.build.gradle.BaseExtension
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getByType
+
+class ComposePlugin : Plugin<Project> {
+    override fun apply(target: Project) = with(target) {
+        val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+        extensions.getByType<BaseExtension>().apply {
+            buildFeatures.apply {
+                compose = true
+            }
+            composeOptions {
+                kotlinCompilerExtensionVersion = libs.findVersion("compose.compiler").get().requiredVersion
+            }
+        }
+
+        dependencies {
+            "implementation"(platform(libs.findLibrary("compose.bom").get()))
+            "implementation"(libs.findBundle("compose").get())
+        }
+    }
+}
diff --git a/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/JUnit5Plugin.kt b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/JUnit5Plugin.kt
new file mode 100644
index 00000000..927e8019
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/JUnit5Plugin.kt
@@ -0,0 +1,24 @@
+package com.hmh.hamyeonham.plugin
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getByType
+
+class JUnit5Plugin : Plugin<Project> {
+    override fun apply(target: Project): Unit = with(target) {
+        with(plugins) {
+            apply("de.mannodermaus.android-junit5")
+        }
+        val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+
+        dependencies {
+            "testImplementation"(libs.findBundle("junit5").get())
+            "androidTestImplementation"(libs.findLibrary("junit5").get())
+            "androidTestImplementation"(libs.findLibrary("junit5.params").get())
+            "androidTestImplementation"(libs.findLibrary("junit5.android.test.core").get())
+            "androidTestRuntimeOnly"(libs.findLibrary("junit5.android.test.runner").get())
+        }
+    }
+}
diff --git a/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/KotlinSerializationPlugin.kt b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/KotlinSerializationPlugin.kt
new file mode 100644
index 00000000..1556787c
--- /dev/null
+++ b/build-logic/convention/src/main/kotlin/com/hmh/hamyeonham/plugin/KotlinSerializationPlugin.kt
@@ -0,0 +1,20 @@
+package com.hmh.hamyeonham.plugin
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getByType
+
+class KotlinSerializationPlugin : Plugin<Project> {
+    override fun apply(target: Project) = with(target) {
+        with(plugins) {
+            apply("org.jetbrains.kotlin.plugin.serialization")
+        }
+
+        val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+        dependencies {
+            "implementation"(libs.findLibrary("kotlin.serialization.json").get())
+        }
+    }
+}
diff --git a/build-logic/gradle.properties b/build-logic/gradle.properties
new file mode 100644
index 00000000..1c9073eb
--- /dev/null
+++ b/build-logic/gradle.properties
@@ -0,0 +1,4 @@
+# Gradle properties are not passed to included builds https://github.com/gradle/gradle/issues/2534
+org.gradle.parallel=true
+org.gradle.caching=true
+org.gradle.configureondemand=true
diff --git a/build-logic/gradle/wrapper/gradle-wrapper.properties b/build-logic/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..67767e46
--- /dev/null
+++ b/build-logic/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Fri Jan 13 12:46:38 KST 2023
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/build-logic/settings.gradle.kts b/build-logic/settings.gradle.kts
new file mode 100644
index 00000000..b48fae49
--- /dev/null
+++ b/build-logic/settings.gradle.kts
@@ -0,0 +1,15 @@
+dependencyResolutionManagement {
+    repositories {
+        google()
+        mavenCentral()
+    }
+    versionCatalogs {
+        create("libs") {
+            from(files("../gradle/libs.versions.toml"))
+        }
+    }
+}
+
+rootProject.name = "build-logic"
+include(":convention")
+
diff --git a/build.gradle.kts b/build.gradle.kts
index acd1ada7..73196533 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,33 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+
+    dependencies {
+        classpath(libs.kotlin.gradleplugin)
+        classpath(libs.hilt.plugin)
+        classpath(libs.agp)
+        classpath(libs.ktlint)
+        classpath(libs.oss.plugin)
+    }
+}
+
 plugins {
-    id("com.android.application") version "8.2.0" apply false
-    id("org.jetbrains.kotlin.android") version "1.9.0" apply false
-    id("com.android.library") version "8.2.0" apply false
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.android.library) apply false
+    alias(libs.plugins.kotlin.android) apply false
+    alias(libs.plugins.dagger.hilt) apply false
+    alias(libs.plugins.ktlint) apply false
+    alias(libs.plugins.ksp) apply false
+    alias(libs.plugins.kotlinx.serialization) apply false
+    alias(libs.plugins.junit5) apply false
+    alias(libs.plugins.google.services) apply false
+    alias(libs.plugins.app.distribution) apply false
+    alias(libs.plugins.crashlytics) apply false
+}
+
+tasks.register("clean", Delete::class) {
+    delete(rootProject.layout.buildDirectory)
 }
diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
new file mode 100644
index 00000000..0a2aabde
--- /dev/null
+++ b/buildSrc/build.gradle.kts
@@ -0,0 +1,8 @@
+plugins {
+    `kotlin-dsl`
+}
+
+repositories {
+    mavenCentral()
+    gradlePluginPortal()
+}
diff --git a/buildSrc/gradle.properties b/buildSrc/gradle.properties
new file mode 100644
index 00000000..b5af1b68
--- /dev/null
+++ b/buildSrc/gradle.properties
@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx4g -XX:+UseParallelGC
+org.gradle.configureondemand=true
+org.gradle.parallel=true
+org.gradle.caching=true
diff --git a/buildSrc/settings.gradle.kts b/buildSrc/settings.gradle.kts
new file mode 100644
index 00000000..29744ec1
--- /dev/null
+++ b/buildSrc/settings.gradle.kts
@@ -0,0 +1 @@
+rootProject.name = "buildSrc"
diff --git a/buildSrc/src/main/kotlin/plugin.kt b/buildSrc/src/main/kotlin/plugin.kt
new file mode 100644
index 00000000..4343b9f5
--- /dev/null
+++ b/buildSrc/src/main/kotlin/plugin.kt
@@ -0,0 +1,6 @@
+import org.gradle.plugin.use.PluginDependenciesSpec
+import org.gradle.plugin.use.PluginDependencySpec
+
+fun PluginDependenciesSpec.hmh(pluginName: String): PluginDependencySpec {
+    return id("com.hmh.hamyeonham.$pluginName")
+}
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index dbd35967..b9f507f8 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -6,7 +6,7 @@ appVersion = "1.0.0"
 versionCode = "1"
 
 # kotlin
-kotlin = "1.9.20"
+kotlin = "1.9.0"
 kotlinx-serialization-json = "1.6.0"
 kotlinx-serialization-converter = "1.0.0"
 kotlinx-coroutines = "1.7.3"
@@ -200,7 +200,6 @@ zxing-android-embedded = { module = "com.journeyapps:zxing-android-embedded", ve
 android-application = { id = "com.android.application", version.ref = "agp" }
 android-library = { id = "com.android.library", version.ref = "agp" }
 kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
-kotlin-kapt = { id = "org.jetbrains.kotlin.kapt", version.ref = "kotlin" }
 dagger-hilt = { id = "com.google.dagger.hilt.android", version.ref = "dagger-hilt" }
 google-services = { id = "com.google.gms.google-services", version.ref = "google-services" }
 crashlytics = { id = "com.google.firebase.crashlytics", version.ref = "crashlytics" }
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 9ca82673..741511ca 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,4 +1,7 @@
+enableFeaturePreview("TYPESAFE_PROJECT_ACCESSORS")
+
 pluginManagement {
+    includeBuild("build-logic")
     repositories {
         google()
         mavenCentral()